$467+ Cheap flights from Honolulu (HNL) to Porto (OPO)
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 11/4. Fares are subject to change and may not be available on all flights or dates of travel.
HNL — OPO
Oct 18 — Oct 251
Round-trip
1 adult, Economy
We work with more than 300 partners to bring you better travel deals
Find cheap flights from Honolulu to Porto with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Honolulu to Porto
Cheapest
Best
Last-minute
One-way
Cheapest flights from Honolulu to PortoExplore the most affordable flight options available from Honolulu to Porto. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 18, 2026.
Explore the most affordable flight options available from Honolulu to Porto. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 18, 2026.
This KLM deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/2510:40 pm -
2 stops30h 45m
Tue 11/35:00 am -
2 stops25h 59m
Deal found 9/15![KLM logo]()
$727
This KAYAK deal was found by Cheapflights users on 9/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/2510:30 pm -
2 stops30h 55m
Fri 11/2712:35 pm -
2 stops36h 05m
Deal found 9/18![Lufthansa logo]()
$766
This Delta deal was found by Cheapflights users on 9/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/254:50 pm -
2 stops31h 45m
Fri 11/275:00 am -
2 stops25h 38m
Deal found 9/16![Delta logo]()
$798
This United Airlines deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/253:55 pm -
2 stops31h 35m
Fri 11/2712:35 pm -
2 stops36h 12m
Deal found 9/14![United Airlines logo]()
$806
This Ovago deal was found by Cheapflights users on 9/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/97:00 am -
2 stops24h 30m
Tue 10/1312:15 pm -
2 stops44h 41m
Deal found 9/17![SWISS logo]()
$1,397
This Delta deal was found by Cheapflights users on 9/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/93:50 pm -
1 stop31h 30m
Tue 10/135:00 am -
2 stops27h 15m
Deal found 9/17![Delta logo]()
$1,470
This United Airlines deal was found by Cheapflights users on 9/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/17:00 am -
3 stops37h 10m
Sun 10/411:15 am -
2 stops59h 36m
Deal found 9/17![United Airlines logo]()
$1,575
This Kiwi.com deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/2511:59 pm -
2 stops32h 26m
Tue 11/35:40 pm -
1 stop31h 15m
Deal found 9/15![Multiple Airlines logo]()
$1,644
This United Airlines deal was found by Cheapflights users on 9/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/910:05 pm -
2 stops21h 45m
Tue 10/136:00 am -
3 stops26h 56m
Deal found 9/17![United Airlines logo]()
$2,034
Best flights from Honolulu to PortoDiscover carefully curated flight deals from Honolulu to Porto that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 18, 2026.
Discover carefully curated flight deals from Honolulu to Porto that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 18, 2026.
This United Airlines deal was found by Cheapflights users on 9/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/228:25 pm -
2 stops27h 05m
Thu 3/116:00 am -
2 stops26h 42m
Deal found 9/17![United Airlines logo]()
$726
This Delta deal was found by Cheapflights users on 9/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/247:00 am -
2 stops29h 00m
Tue 3/95:00 am -
2 stops25h 24m
Deal found 9/17![Delta logo]()
$727
This KLM deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/2510:40 pm -
2 stops30h 45m
Tue 11/35:00 am -
2 stops25h 59m
Deal found 9/15![KLM logo]()
$727
This Air France deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 1/178:00 am -
2 stops27h 55m
Thu 1/215:55 am -
2 stops24h 29m
Deal found 9/14![Air France logo]()
$736
This KAYAK deal was found by Cheapflights users on 9/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/2510:30 pm -
2 stops30h 55m
Fri 11/2712:35 pm -
2 stops36h 05m
Deal found 9/18![Lufthansa logo]()
$766
This United Airlines deal was found by Cheapflights users on 9/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 2/218:30 pm -
2 stops27h 00m
Thu 3/116:00 am -
2 stops26h 42m
Deal found 9/17![United Airlines logo]()
$726
This Delta deal was found by Cheapflights users on 9/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/2310:45 pm -
2 stops30h 40m
Sat 3/611:15 am -
2 stops40h 16m
Deal found 9/17![Delta logo]()
$781
This United Airlines deal was found by Cheapflights users on 9/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/238:25 pm -
2 stops27h 05m
Thu 3/116:00 am -
2 stops26h 42m
Deal found 9/17![United Airlines logo]()
$726
This United Airlines deal was found by Cheapflights users on 9/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 1/1711:25 pm -
2 stops30h 05m
Thu 1/216:00 am -
2 stops43h 12m
Deal found 9/18![United Airlines logo]()
$754
Last-minute flights from Honolulu to PortoDiscover last-minute flight deals from Honolulu to Porto. Data last updated September 18, 2026 and is based on user searches.
Discover last-minute flight deals from Honolulu to Porto. Data last updated September 18, 2026 and is based on user searches.
This United Airlines deal was found by Cheapflights users on 9/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/17:00 am -
3 stops37h 10m
Sun 10/411:15 am -
2 stops59h 36m
Deal found 9/17![United Airlines logo]()
$1,575
This Ovago deal was found by Cheapflights users on 9/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/97:00 am -
2 stops24h 30m
Tue 10/1312:15 pm -
2 stops44h 41m
Deal found 9/17![SWISS logo]()
$1,397
This Delta deal was found by Cheapflights users on 9/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/93:50 pm -
1 stop31h 30m
Tue 10/135:00 am -
2 stops27h 15m
Deal found 9/17![Delta logo]()
$1,470
This United Airlines deal was found by Cheapflights users on 9/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/910:05 pm -
2 stops21h 45m
Tue 10/136:00 am -
3 stops26h 56m
Deal found 9/17![United Airlines logo]()
$2,034
This KLM deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/2510:40 pm -
2 stops30h 45m
Tue 11/35:00 am -
2 stops25h 59m
Deal found 9/15![KLM logo]()
$727
This KAYAK deal was found by Cheapflights users on 9/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/2510:30 pm -
2 stops30h 55m
Fri 11/2712:35 pm -
2 stops36h 05m
Deal found 9/18![Lufthansa logo]()
$766
This Delta deal was found by Cheapflights users on 9/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/254:50 pm -
2 stops31h 45m
Fri 11/275:00 am -
2 stops25h 38m
Deal found 9/16![Delta logo]()
$798
This United Airlines deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/253:55 pm -
2 stops31h 35m
Fri 11/2712:35 pm -
2 stops36h 12m
Deal found 9/14![United Airlines logo]()
$806
This Kiwi.com deal was found by Cheapflights users on 9/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/2511:59 pm -
2 stops32h 26m
Tue 11/35:40 pm -
1 stop31h 15m
Deal found 9/15![Multiple Airlines logo]()
$1,644
One-way flights from Honolulu to PortoSearch for one-way flight options from Honolulu to Porto. Find affordable one-way fares based on user searches. Data last updated September 18, 2026.
Search for one-way flight options from Honolulu to Porto. Find affordable one-way fares based on user searches. Data last updated September 18, 2026.
This Delta deal was found by Cheapflights users on 9/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/48:00 am -
2 stops28h 00m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/18![Delta logo]()
$467
This Kiwi.com deal was found by Cheapflights users on 9/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/49:00 am -
3 stops28h 00m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/18![Multiple Airlines logo]()
$529
Find flight deals from Honolulu to Porto
Discover tips and strategies to find the most affordable flight options for your journey from Honolulu (HNL) to Porto (OPO). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated September 18, 2026.
Most accurate provider | AranGrant 3 stars |
|---|---|
Most trusted provider | AranGrant 3 stars |
Round-trip from | $716 (United) |
One-way from | $467 (Delta) |
Cheapflights Fare Finder
Customize your flight search to find flights from Honolulu to Porto that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 7,457,451 searches. Data last updated September 18, 2026.
Use the filters below to find and compare flights from Honolulu to Porto that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
Quickest round-trip
HonoluluPorto
HNL Honolulu - OPO Porto
HNLOPO
Honolulu
Wed 11/4
8:00 am-10:00 pm
2 stops28h 00m
Porto
Wed 12/31
12:00 am-1:00 pm
Nonstop0h 00m
$467
HonoluluPorto
HNL Honolulu - OPO Porto
HNLOPO
Honolulu
Wed 11/4
9:00 am-11:00 pm
3 stops28h 00m
Porto
Wed 12/31
12:00 am-1:00 pm
Nonstop0h 00m
$529
HonoluluPorto
HNL Honolulu - OPO Porto
HNLOPO
Honolulu
Mon 2/22
8:25 pm-9:30 am
2 stops27h 05m
Porto
Thu 3/11
6:00 am-10:42 pm
2 stops26h 42m
$726
HonoluluPorto
HNL Honolulu - OPO Porto
HNLOPO
Honolulu
Sun 2/21
8:30 pm-9:30 am
2 stops27h 00m
Porto
Thu 3/11
6:00 am-10:42 pm
2 stops26h 42m
$726
HonoluluPorto
HNL Honolulu - OPO Porto
HNLOPO
Honolulu
Tue 2/23
8:25 pm-9:30 am
2 stops27h 05m
Porto
Thu 3/11
6:00 am-10:42 pm
2 stops26h 42m
$726
HonoluluPorto
HNL Honolulu - OPO Porto
HNLOPO
Honolulu
Wed 2/24
7:00 am-10:00 pm
2 stops29h 00m
Porto
Tue 3/9
5:00 am-8:24 pm
2 stops25h 24m
$727
HonoluluPorto
HNL Honolulu - OPO Porto
HNLOPO
Honolulu
Sun 10/25
10:40 pm-3:25 pm
2 stops30h 45m
Porto
Tue 11/3
5:00 am-8:59 pm
2 stops25h 59m
$727
HonoluluPorto
HNL Honolulu - OPO Porto
HNLOPO
Honolulu
Sun 1/17
8:00 am-9:55 pm
2 stops27h 55m
Porto
Thu 1/21
5:55 am-8:24 pm
2 stops24h 29m
$736
HonoluluPorto
HNL Honolulu - OPO Porto
HNLOPO
Honolulu
Sun 1/17
11:25 pm-3:30 pm
2 stops30h 05m
Porto
Thu 1/21
6:00 am-3:12 pm
2 stops43h 12m
$754
HonoluluPorto
HNL Honolulu - OPO Porto
HNLOPO
Honolulu
Sun 10/25
10:30 pm-3:25 pm
2 stops30h 55m
Porto
Fri 11/27
12:35 pm-2:40 pm
2 stops36h 05m
$766
Showing 1-10 of 11 resultsSorted by cheapest first
- Most accurate provider: When it comes to deals on Honolulu-Porto flights, users find the pricing of AranGrant to be most consistent on Cheapflights vs. AranGrant Users can find the same prices on Honolulu-Porto flight deals on Cheapflights vs. AranGrant >95% of the time. Price accuracy is based on data collected from Honolulu-Porto flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Honolulu-Porto flights, Cheapflights users trust AranGrant the most. AranGrant has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Honolulu-Porto flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.
Best time to book a flight from Honolulu to Porto
Have a flexible travel schedule? Discover the best time to fly to Porto from Honolulu with our price prediction graph.
HNL-OPO
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Reviews of airlines servicing Porto
Get insights into the airlines that provide service to Porto. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Porto. Reviews last updated September 18, 2026.
Read reviews from past customers who have flown United Airlines from Honolulu to Porto. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Comfort
7.3
Overall
7.4
Crew
8.1
Food
6.7
Entertainment
7.1
Boarding
7.7
Reviews
1 / 20
8.0
ExcellentAsha,Sep 2026
LGA - IAH
Comfort
7.3
Overall
7.4
Crew
8.1
Food
6.7
Entertainment
7.1
Boarding
7.7
Reviews
1 / 20
8.0
ExcellentAsha,Sep 2026
LGA - IAH
Related info for your journey
Find useful and relevant information for your journey from Honolulu to Porto. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Traveling to a place near Porto?
Book flights to Porto if you plan to visit one of these locationsVila Nova de Gaia
Arcos de Valdevez
Coimbra
Aveiro
Browse thousands of different options on Cheapflights for your next trip
Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.
Alternative routes
Complete your trip
Flights by cabin class
Other flight options
Other flights from Honolulu
Popular flights
Porto flight routes
Alternative routes for Honolulu to Porto
See prices for flight routes from nearby airports that may be better suited for you.
Complete your trip
Complete your trip to Porto by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Honolulu to Porto by cabin class
Find flights from Honolulu to Porto, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Honolulu and Porto flights
Browse other Honolulu and Porto flight options. Last updated on September 18, 2026.
Other flights from Honolulu
Browse through other flights departing from Honolulu. Flights are based on user searches made on Cheapflights and were last updated on September 18, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Other flights to Porto
Explore flights to Porto departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on September 18, 2026.
Top airline flying from Honolulu to Porto
Discover the top airline that operate flights from Honolulu to Porto. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 7,457,451 searches. Data last updated September 18, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$588 | Average$693 | FlexibilityNo cancel fee | On-time69% |